One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,10)(3,11,14,15)(4,7,5,9)(8,12,16,13)(17,18,23,28)(19,29,33,39)(20,34,36,42)(21,26,22,27)(24,32,40,31)(25,37,43,35)(30,41,46,38)(44,47,48,45)(2,7)(4,5)(8,15)(9,10)(11,16)(12,13)(17,19,23,33)(18,24,28,40)(20,30,36,46)(21,32,22,31)(25,41,43,38)(26,29,27,39)(34,44,42,48)(35,47,37,45)(1,3,6,14)(2,8,10,16)(4,13,5,12)(7,15,9,11)(17,20,23,36)(18,25,28,43)(19,30,33,46)(21,35,22,37)(24,38,40,41)(26,42,27,34)(29,44,39,48)(31,45,32,47)(17,21,23,22)(18,26,28,27)(19,31,33,32)(20,35,36,37)(24,39,40,29)(25,42,43,34)(30,45,46,47)(38,48,41,44)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.